1735, Apr 211818, Aug 11
a Russian mechanic and inventor. He was born in Nizhny Novgorod in the family of a trader. From childhood, Kulibin displayed an interest in constructing mechanical tools. Soon, clock mechanisms became a special interest of his. His realizations as well as his prolific imagination inspired the work of many. During the 1770s, he designed a wooden one-arch bridge over the Neva river with a span of 298 metres (instead of the typically used 50–60 metre spans), offering to use an original girder with a cross grate. In 1776 a model 1/10 the natural size of this bridge was tested by a special commission of academics. Kulibin's project was praised by Leonhard Euler and Daniel Bernoulli, but was never realized.
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